<!DOCTYPE html>
<html>
<head>
	<meta http-equiv="Content-Type" content="text/html">
	<meta charset="utf-8" />
	<meta http-equiv="X-UA-Compatible" content="IE=edge" />
	<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
	<title></title>
</head>
<body erke-hide>
</body>
<script>
/**
 * @param {string} s
 * @return {number}
 */
var countSegments = function(s) {
	s=s.replace(/(^\s*)|(\s*$)/g,'');
	while(s.indexOf('  ')>=0){
		s=s.replace('  ',' ');
	};
	if(s==''){
       return 0;  
    };
    console.log(s.split(' ').length);
    return s.split(' ').length;
};
var res=new countSegments(", , , ,        a, eaefa");
</script>
</html>